Hardware manufactures almost always ship Windows drivers with their products.
Windows 7 drivers are under development but no public releases have been made available as of June 2009 .
This limits it basically to controllers for the Xbox 360 that also have Windows drivers.
There are also repositories of Windows drivers on the Web.
Just tell her it has something to do with Windows drivers for your pointing device.
The default Windows drivers are not optimized for low latency effect processing.
It's done that by emulating the whole device driver interface to a Windows driver.
If you're running an older computer and you need a Windows driver that's not off the shelf, you can always find it here.
A collection of software for Covox, including Windows driver.
This was supported in the Windows drivers, so no additional software was needed to utilize it.